A New Loop Antenna for Directional UWB Links

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dc.contributor.author Ning, Low Zhen. en_AU
dc.contributor.author Seng, Leong Mook. en_AU
dc.contributor.author Wei, Li Le. en_AU
dc.contributor.author Krishnan, Sivanand. en_AU
dc.contributor.author Kyaw, Ohnmar. en_AU
dc.date.accessioned 2007-03-12T22:05:46Z
dc.date.accessioned 2012-12-15T02:29:42Z
dc.date.available 2007-03-12T22:05:46Z
dc.date.available 2012-12-15T02:29:42Z
dc.date.issued 2007-03-12T22:05:46Z
dc.identifier.uri http://hdl.handle.net/2100/148
dc.identifier.uri http://hdl.handle.net/10453/19657
dc.description.abstract Loop antennas of circumference greater than a wavelength are generally known to have a good directive radiation pattern. However, for use in UWB applications, the variation of the radiation pattern with frequency must also be taken into account. Besides a good wideband radiation pattern, the impedance bandwidth of the antenna is also very important. The quality of a transmitted and received UWB pulse from the antenna will be a combination of both these factors. In this paper, we first investigate the characteristics of loop antennas with respect to both these factors. Next, we propose a new loop antenna configuration to overcome the limitations of the standard loop antenna for UWB applications. The new antenna consists of two concentric half-loops directly coupled to each other. The proposed antenna is analyzed using the Method-of-Moments (MoM). The theoretical and measured results agree with each other closely and attest to the fact that the new antenna has a far superior impedance bandwidth when compared with conventional loop antennas. Further, it is shown that the new antenna has a good gain and a useful radiation pattern for directional wireless links. The advantages of the antenna are conclusively demonstrated by successfully deploying it in a very high speed (500 Mbps) point-to-point UWB link. en_AU
dc.format.extent 409202 bytes
dc.format.mimetype application/pdf
dc.language.iso en_AU
dc.title A New Loop Antenna for Directional UWB Links en_AU
utslib.copyright.status Open Access


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